diff --git a/Box2D.spec b/Box2D.spec
index b1793ce..484f75f 100644
--- a/Box2D.spec
+++ b/Box2D.spec
@@ -32,7 +32,6 @@ These are the development files.
 
 %prep
 %setup -qn box2d-%{version}
-rm -rf glew glfw
 
 %build
 %cmake -DBOX2D_INSTALL=ON -DBOX2D_BUILD_SHARED=ON .